charm-ceph-osd/hooks/secrets-storage-relation-joined
James Page 2069e620b7 Add support for vault key management with vaultlocker
vaultlocker provides support for storage of encryption keys
for LUKS based dm-crypt device in Hashicorp Vault.

Add support for this key management approach for Ceph
Luminous or later.   Applications will block until vault
has been initialized and unsealed at which point OSD devices
will be prepared and booted into the Ceph cluster.

The dm-crypt layer is placed between the block device
parition and the top level LVM PV used to create VG's
and LV's to support OSD operation.

Vaultlocker enables a systemd unit for each encrypted
block device to perform unlocking during reboots of the
unit; ceph-volume will then detect the new VG/LV's and
boot the ceph-osd processes as required.

Note that vault/vaultlocker usage is only supported with
ceph-volume, which was introduced into the Ubuntu packages
as of the 12.2.4 point release for Luminous.  If vault is
configured as the key manager in deployments using older
versions, a hook error will be thrown with a blocked
status message to this effect.

Change-Id: I713492d1fd8d371439e96f9eae824b4fe7260e47
Depends-On: If73e7bd518a7bc60c2db08e2aa3a93dcfe79c0dd
Depends-On: https://github.com/juju/charm-helpers/pull/159
2018-05-15 08:28:15 +01:00

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